To pack amalgam tightly and remove any excess mercury from the mix.

• A. Condensation
• B. Flow
• C. Solubility
• D. Corrosion

Answer: (A)

Packing amalgam tightly and removing excess mercury is accomplished through condensation. Condensation is the process of compacting the mixed amalgam into the prepared cavity with an amalgam condenser, seating the material, eliminating voids, and pushing out any surplus mercury to achieve a dense, well-adapted restoration. Flow describes how the material moves under pressure, but it doesn’t specifically capture the action of packing and expelling mercury. Solubility is about dissolving substances, and corrosion is chemical degradation—neither describes the mechanical packing step.